During the summer it can get very, very hot where I live. This summer we've had entire weeks where the temperature didn't go below 35° during the day. That, combined with a very high humidity, made it impossible to spend the day somewhere with no air conditioner. We have a couple ACs in my house, but not in my room. And, while during the day I could just go to the living room to get some fresh air, some nights were hell. So much heat made it impossible for me to get a goodnight sleep. This got me thinking of buying an AC -- but these can be quite expensive and usually demand a lot of electricity. I finally decided it wasn't worth it for 3 hot months during the year (it stays rather cool - cold during the rest of the year). What do you think? If you don't have an AC, have you considered buying one? And if you have one, do you feel it was worth buying one?